Chayote alias alias palm melon, dishes pear. Its fruit is rich in carbohydrates, mineral salts, vitamins, deuterated enzymes, etc., salad, cooking, fried food, salted, sauce can be, unique flavor, rich nutrition, both digestion appetizers and other effects. Its tender stems, young leaves, tendrils and other nutritional organs can also be used as vegetables. In the Yangtze River Valley as a vegetable cultivation. Chayote is resistant to pests and diseases and is highly suitable for pollution-free production. First, characteristics. Chayote is a climbing herb of the cucurbitaceae, which is hypertrophic and can form roots. The root system is very developed and can grow up to a few meters, but its distribution is shallow. Stems, strong branching, large tendrils. Palmate leaves alternate, densely green, covered with hairs. Dichogamous and same plants, generally with the same section of axillary, female flowers solitary, male flowers into a racemose. The result is extremely strong, with up to several hundred per plant. Fruit pear-shaped, with 5 longitudinal grooves, white flesh, single fruit weight 200-300 grams. Each fruit contains 1 oval flat seed. Chayote is hi and warm, and it is more resistant to high temperatures. Above 20°C it can grow normally. When the ground temperature is lower than 5°C, the root system will die. It is a photogenic plant that can withstand shade. Suitable for fertile and well-maintained loam. Second, there are two main varieties: (1) Green species. The growth potential is strong, the vines are thick and long, the results are numerous, the fruit shape is large, and the yield is high. The peel is green and has a fresh spine. Taste slightly. (2) White species. The growth is weak, the vines are short, the melons are less, the yield is lower, the melons are oblate, and they are smooth and without thorns. The skin is green and white, with dense tissue, strong sputum, and good flavor. Third, the cultivation techniques 1, sowing seedlings and planting. Chayote can be cultivated in perennial vegetables in warm areas, and is suitable for cultivation in early spring or spring and summer. Chayote uses whole fruit as seed material. When the spring temperature is above 20°C, choose a neat, large, and wound-free melon, broadcast live in Daejeon, or use large pots to grow seedlings in greenhouses in early spring. After growing large seedlings, plant the seedlings in Daejeon. When sowing, the fruit is laid flat or the handle end is down, the seed melon 2/3 is buried in the soil, and the heat preservation moistens the seedlings. The cuttings can be propagated and harvested before the frost in autumn and winter. The old stems on the ground can be intercepted and the wintering can be prevented. In the late spring, the cuttings can be cut into 15-20 cm lengths, and the plants can be inserted after germination. The spacing is 4 meters, the spacing is 2-2.5 meters, and 70-80 trees are planted per mu. Before and after the Ching Ming, it can be interplanted in a vegetable shed with early spring facilities. There are 12-15 strains on each side of the greenhouse, and scaffolds are used as scaffolds after uncovering the membrane. Chayote planting density is small, can interplant two kinds of loofah between the plants, which is not only conducive to Chayote safe summer, but also increase income. 2, field management. (1) fertilizer and water management. Chayote needs a large amount of fertilizer and should be applied to the base fertilizer before sowing or planting, and timely fertilizer during the growth period. When cultivated once a year, the whole growth period is 3-4 times. Fertilizer is mainly farmyard manure, plus appropriate amounts of phosphorus and potassium fertilizers. Chayote is sensitive to human fecal urine. Fertilizer can not be applied to human urine especially during seedling stage. Chayote hi humid environment, to keep the soil moist. Irrigation of small water before June, irrigation of water after June, the largest amount of water from July to September. (2) cultivating earth. Cultivate 2-3 times in general, combine with cultivator, remove field weeds timely, and properly cultivate soil. (3) Plant adjustments. When the main vines are plucked at 30 centimeters, they will be selected early to retain 2-3 healthy vines. When the cranberry grows to 150 centimeters, it will be picked up. Each will have 3 vines and the vines will be introduced in time. (4) Artificial pollination. Artificial pollination during flowering and fruit setting can increase fruit setting rate. 3, harvesting and storage. Chayote in our province more than the end of September to early October flowering, 15-20 days after flowering for the tender fruit harvest appropriate, 40-50 days after flowering fruit harvesting appropriate period. Each plant can collect 200-300 fruits. It is generally advisable to harvest 1 to 7 days, but it must be harvested before frost. The optimum temperature for fruit storage is 9-10°C, and the relative humidity of air is 85-90%.